// Klasa zwierząt
// Kury
// Krowy

public abstract class Animal
{
    public virtual void Eat()
    {
        Console.WriteLine("Zwierze je");
    }

    public abstract void TakeSound();
}

public class Cow : Animal
{
    public override void TakeSound()
    {
        System.Console.WriteLine("Krowa robi muuu");
    }

    public override void Eat()
    {
        System.Console.WriteLine("Krowa je trawę");
    }
}

public class Hen: Animal
{
    
        public override void TakeSound()
    {
        System.Console.WriteLine("kura robi ko ko");
    }
}